Almost all general services can be done to Chris King Hubs with just two 5mm hex wrenches. However, for the full service shop or those home mechanics who seek perfection, King offers hub servicing tools. The Hub Cone Adjusting Tool helps with adjustment, while the ingenious, beautiful, and surprisingly affordable Hub Service Tool allows you to completely (and properly) disassemble and reassemble all Chris King Classic hubs. This tool is built and machined to the same precise specs as all other King products, and like other King products - it is built to last a lifetime. A must for any King hub owner.